IR – wide flange (ASTM A6 W)

IR 1000x393

Standard: ASTM A6 / IMCASource: SI values from the AISC v16.0 database
IR designation built from the metric W; cross-check with the IMCA Manual.
xybf = 302d = 1,020tf = 43.9tf = 43.9tw = 24.4tw = 24.4
Cross-section, to scaledimensions in mm

Dimensions

Depthd
1,020mm
Flange widthbf
302mm
Web thicknesstw
24.4mm
Flange thicknesstf
43.9mm
Distance k (design)kdes
73.9mm
Distance k (detailing)kdet
76.2mm
Distance k1k1
42.9mm
Web clear depthT
864mm
Distance between flange centroidsho
973mm

Mass and area

Mass per lengthm
393kg/m
Cross-sectional areaA
49,900mm²

Strong axis x–x

Moment of inertiaIx
8,07010⁶ mm⁴
Elastic section modulusSx
15,90010³ mm³
Plastic section modulusZx
18,50010³ mm³
Radius of gyrationrx
401mm

Weak axis y–y

Moment of inertiaIy
20510⁶ mm⁴
Elastic section modulusSy
1,35010³ mm³
Plastic section modulusZy
2,16010³ mm³
Radius of gyrationry
64mm

Torsion and stability

Torsional constantJ
23,40010³ mm⁴
Warping constantCw
48,60010⁹ mm⁶
Effective radius of gyrationrts
79.2mm

Slenderness ratios

Flange slendernessbf/2tf
3.45
Web slendernessh/tw
35.6

Equivalents in other standards